mtcontrib/mapgen_rivers
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Changed the way river width is determined in settings

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- min_catchment now in square nodes instead of cells
- River widening power as input instead of calculating it from max_catchment
This commit is contained in:
Gaël C
2021-07-24 13:18:58 +02:00
parent 8ce20816e1
commit 9386ef51f1
3 changed files with 11 additions and 13 deletions
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8
polygons.lua
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@ -90,11 +90,9 @@ if mapgen_rivers.settings.center then
map_offset.z = blocksize*Z/2
end
-- Width coefficients: coefficients solving
-- wfactor * min_catchment ^ wpower = 1/(2*blocksize)
-- wfactor * max_catchment ^ wpower = 1
local wpower = math.log(2*blocksize)/math.log(max_catchment/min_catchment)
local wfactor = 1 / max_catchment ^ wpower
local min_catchment = mapgen_rivers.settings.min_catchment / (blocksize*blocksize)
local wpower = mapgen_rivers.settings.river_widening_power
local wfactor = 1/(2*blocksize * min_catchment^wpower)
local function river_width(flow)
flow = math.abs(flow)
if flow < min_catchment then